namespace LINQ_Perf_Test;

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        // Create a large list of integers
        int size = 5;
        List<int> numbers = Enumerable.Range(1, size).ToList();
        int elementToFind = size; // Element at the end of the list
        Stopwatch stopwatch = new Stopwatch();

        // Wait 2 seconds.
        System.Threading.Thread.Sleep(2000);

        long linqElapsedTicks = LinqTest(numbers, elementToFind, stopwatch);

        stopwatch.Reset();

        long forLoopElapsedTicks = ForLoopTest(numbers, elementToFind, stopwatch);

        // Log results
        Console.WriteLine($"LINQ Any() took {linqElapsedTicks} ticks.");
        Console.WriteLine($"For loop took {forLoopElapsedTicks} ticks.");
    }

    private static long LinqTest(List<int> numbers, int elementToFind, Stopwatch stopwatch)
    {
        stopwatch.Start();
        bool existsWithLinq = numbers.Any(n => n == elementToFind);
        stopwatch.Stop();
        return stopwatch.ElapsedTicks;
    }

    private static long ForLoopTest(List<int> numbers, int elementToFind, Stopwatch stopwatch)
    {
        stopwatch.Start();
        for (int i = 0; i < numbers.Count; i++)
        {
            if (numbers[i] == elementToFind)
            {
                break;
            }
        }

        stopwatch.Stop();
        return stopwatch.ElapsedTicks;
    }
}